The argument that says "you should roleplay whatever makes you happy" can be a very compelling one on the surface, but you have to remember that roleplaying is not something that you do by yourself -- you do it with other people.

It's kind of like driving and the rules people obey on the road; it's rather arbitrary, for example, whether a country chooses to drive on the right side of the road (like the US and China) or on the left side (like the UK and Hong Kong), but whichever side you choose, everyone's gotta do it that way or you'll have serious problems.

Likewise, if you have some people roleplaying that all this terrible warfare has taken place and nearly wiped out your species, while other people are roleplaying that they have no idea what all this "combat" stuff is all about -- you're going to have a problem. Both those are fine if you're writing separate novels happening in separate worlds, but in Azeroth it's really the first option, not the second.

This doesn't mean you can't find some way some how that a human character might have grown up completely sheltered from all the bad things happening in the world. But that would have to be a pretty isolated person for it to work.

Faith in your human government is really a separate issue. Maybe your character is a son of a noble family and he's like "Yay noble houses! Katrina Prestor is my mother's best friend!" You know... go for it. Just don't pretend he's never heard of flesh-eating zombies and bloodthirsty greenskins who'd just assume chop off your head as tell you the time of day.

sorry to nitpick, but... "who'd just as soon," not "who'd just assume"